An entry in the Prescriptions column on Aug. 22 about an appearance on the ''Daily Show'' by the former New York lieutenant governor Betsy McCaughey misstated her political affiliation. Ms. McCaughey has been a registered Democrat since September...

To the Editor: Re ''To Catch a Deadly Germ,'' by Betsy McCaughey (Op-Ed, Nov. 14): The Centers for Disease Control and Prevention's guidance does recommend screening for M.R.S.A. (methicillin-resistant Staphylococcus aureus) as part of an...

To the Editor: Nicholas D. Kristof blames the shortcomings of our health system for our high infant mortality rate (column, Jan. 12). Regrettably, the high infant mortality reflects a society where young girls and women take drugs while pregnant...